Re: [PATCH v2 0/5] Allow the trampoline to use EFI boot services RAM

2016-08-11 Thread Matt Fleming
On Thu, 11 Aug, at 10:52:25AM, Ingo Molnar wrote: > > Ok, fine enough to me! > > Matt, is patch #5: > >[PATCH v2 5/5] x86/efi: Allocate a trampoline if needed in > efi_free_boot_services() > > looking good to you? Yep, looks good. Reviewed-by: Matt Fleming

Re: [PATCH v2 0/5] Allow the trampoline to use EFI boot services RAM

2016-08-11 Thread Ingo Molnar
* Andy Lutomirski wrote: > On Aug 10, 2016 3:31 PM, "Ingo Molnar" wrote: > > > > > > One side note: > > > > * Andy Lutomirski wrote: > > > > > This series fixes it the other way: it allow the trampoline to live > > > in boot services memory. It achieves this by deferring the panic > > > due t

Re: [PATCH v2 0/5] Allow the trampoline to use EFI boot services RAM

2016-08-10 Thread Ingo Molnar
* Andy Lutomirski wrote: > As currently configured, my laptop cannot boot any existing kernel > because the real mode trampoline can't be reserved. The ranges in > which it could live are rejected by the kernel: one is EFI boot > services data and the other is above the EBDA. Ok, so I like thi

Re: [PATCH v2 0/5] Allow the trampoline to use EFI boot services RAM

2016-08-10 Thread Ingo Molnar
One side note: * Andy Lutomirski wrote: > This series fixes it the other way: it allow the trampoline to live > in boot services memory. It achieves this by deferring the panic > due to failure to reserve a trampoline until early_initcall time > and then adjusting the EFI boot services quirk t

Re: [PATCH v2 0/5] Allow the trampoline to use EFI boot services RAM

2016-08-10 Thread Andy Lutomirski
On Aug 10, 2016 3:31 PM, "Ingo Molnar" wrote: > > > One side note: > > * Andy Lutomirski wrote: > > > This series fixes it the other way: it allow the trampoline to live > > in boot services memory. It achieves this by deferring the panic > > due to failure to reserve a trampoline until early_in

Re: [PATCH v2 0/5] Allow the trampoline to use EFI boot services RAM

2016-08-10 Thread Andy Lutomirski
On Wed, Aug 10, 2016 at 5:28 AM, Ingo Molnar wrote: > > * Andy Lutomirski wrote: > >> As currently configured, my laptop cannot boot any existing kernel >> because the real mode trampoline can't be reserved. The ranges in >> which it could live are rejected by the kernel: one is EFI boot >> serv

[PATCH v2 0/5] Allow the trampoline to use EFI boot services RAM

2016-08-10 Thread Andy Lutomirski
As currently configured, my laptop cannot boot any existing kernel because the real mode trampoline can't be reserved. The ranges in which it could live are rejected by the kernel: one is EFI boot services data and the other is above the EBDA. Allowing use of RAM between the EBDA and 640k is scar

RE: [PATCH v2 0/5] Allow the trampoline to use EFI boot services RAM

2016-08-10 Thread Mario_Limonciello
t Fleming ; linux- > ker...@vger.kernel.org > Subject: Re: [PATCH v2 0/5] Allow the trampoline to use EFI boot services > RAM > > On Wed, Aug 10, 2016 at 5:28 AM, Ingo Molnar wrote: > > > > * Andy Lutomirski wrote: > > > >> As currently configured, my laptop cannot bo